jsonを出力する
#coding:utf-8
require 'json'
print("Content-type: application/json\n\n")
print JSON.generate({"time"=>Time.now.strftime("%Y-%m-%d %H:%M:%S"),
"user"=>[
{"id" => 32, "name"=>"jeff"},
{"id" => 56, "name"=>"john"}
]
})
UIColorから16進数の文字列を得る
NSString*colorHex = [self getColorHexByUIColor:[UIColor redColor]];
NSLog("%@",colorHex);
-(NSString*)getColorHexByUIColor:(UIColor*)color
{
CGFloat r,g,b,a;
[color getRed:&r green:&g blue:&b alpha:&a];
return [NSString stringWithFormat:@"%02x%02x%02x",(int)(r*255.0),(int)(g*255.0),(int)(b*255.0)];
}
Swift #5 animateWithDuration
@IBOutlet weak var mainLabel: UILabel!
func initUI(){
var message:String = getMessage(message:"いあうえ",message2:"390u8")
println(message)
message = getMessage(message2:"むぎちゃ")
println(message)
UIView.animateWithDuration(
2.0,
delay: 1.0,
usingSpringWithDamping: 1.0,
initialSpringVelocity: 0.0,
options: UIViewAnimationOptions.CurveEaseInOut,
animations:{()in
self.mainLabel.frame = CGRectMake(100.0, 300.0, self.mainLabel.frame.size.width, self.mainLabel.frame.size.height)
},
completion:{(finished)in
println("finished:\(finished)")
})
}
func getMessage(var message:String="ABC",var message2:String="MBNRKF")->String{
return "\(message) \(message2)"
}
override func viewDidLoad() {
super.viewDidLoad()
initUI()
}
出力結果
いあうえ 390u8 ABC むぎちゃ finished:true
Swift #4 カメラを扱う
Main.storyboard
ViewController
class ViewController: UIViewController, UINavigationControllerDelegate, UIImagePickerControllerDelegate {
@IBOutlet var mainImageView: UIImageView
var picker:UIImagePickerController?
override func viewDidLoad() {
super.viewDidLoad()
picker = UIImagePickerController()
picker!.delegate = self
picker!.allowsEditing = false
}
@IBAction func onTapButton1(button:UIButton){
println( "onTapButton - open album" )
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary) {
picker!.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
self.presentViewController(picker, animated: true, completion: nil)
}
}
@IBAction func onTapButton2(button:UIButton){
println( "onTapButton - take photo" )
if picker==nil {
return
}
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera) {
picker!.sourceType = UIImagePickerControllerSourceType.Camera
self.presentViewController(picker, animated: true, completion: nil)
}
}
func imagePickerController(picker: UIImagePickerController!, didFinishPickingImage image: UIImage!, editingInfo: NSDictionary!){
println( "imagePickerController" )
self.dismissViewControllerAnimated(true, completion: nil)
mainImageView.image = image
if picker!.sourceType == UIImagePickerControllerSourceType.Camera {
println( "save photo" )
UIImageWriteToSavedPhotosAlbum(image, self, "onSaveImageWithUIImage:error:contextInfo:", nil)
}
}
func onSaveImageWithUIImage(image: UIImage!, error: NSErrorPointer, contextInfo: UnsafePointer<()>){
if error {
println( "error" )
return
}
println( "success" )
}
func imagePickerControllerDidCancel(picker: UIImagePickerController!){
println( "imagePickerControllerDidCancel" )
self.dismissViewControllerAnimated(true, completion: nil)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Swift #3
func initUI(){
//配列-固定
println( "-------------- array1" )
let array1 = [0, 3, "あいうえお"]
println( array1 )
//配列-可変
println( "-------------- array2" )
var array2:[Int] = [1,2,3]
array2[1]=57
println( array2 )
println( "-------------- array3" )
var array3:[Float] = [4.0, 768.0, 0.432, 0.2]
array3[0]=5.0
array3[2]=346.0
println( array3 )
println( "-------------- array4" )
var array4:[String] = ["か","き","く","け"]
array4[2]="さしすせそ"
println( array4 )
//Dictionary
println( "-------------- Dictionary" )
var dic1:[String:NSObject?] = ["name":"た","address":"ち","number":"つ"];
println( dic1 )
println( dic1["address"] )
dic1["address"]="マダガスカル"
println( dic1 )
//for in 1
println( "-------------- for in 1" )
for value in array2 {
println( value )
}
//for in 2
println( "-------------- for in 2" )
for obj in dic1 {
println( obj )
}
//for in 3
println( "-------------- for in 3" )
for i in 1..<8 {
println( i )
}
//for in 4
println( "-------------- for in 4" )
for i in 1...8 {
println( i )
}
//for in 5
println( "-------------- for in 5" )
for i in 0..<array3.count {
println( "\(i) : \(array3[i])" )
}
//for in 6
println( "-------------- for in 6" )
for obj in dic1 {
var (key,value)=obj
println( "\(key) : \(value)" )
}
//for
println( "-------------- for" )
for var i=0;i<10;i++ {
println( "for : \(i)" )
}
}
override func viewDidLoad() {
super.viewDidLoad()
initUI()
}
出力結果
-------------- array1
(
0,
3,
"\U3042\U3044\U3046\U3048\U304a"
)
-------------- array2
[1, 57, 3]
-------------- array3
[5.0, 768.0, 346.0, 0.200000002980232]
-------------- array4
[か, き, さしすせそ, け]
-------------- Dictionary
[number: つ, name: た, address: ち]
ち
[number: つ, name: た, address: マダガスカル]
-------------- for in 1
1
57
3
-------------- for in 2
(number, つ)
(name, た)
(address, マダガスカル)
-------------- for in 3
1
2
3
4
5
6
7
-------------- for in 4
1
2
3
4
5
6
7
8
-------------- for in 5
0 : 5.0
1 : 768.0
2 : 346.0
3 : 0.200000002980232
-------------- for in 6
number : つ
name : た
address : マダガスカル
-------------- for
for : 0
for : 1
for : 2
for : 3
for : 4
for : 5
for : 6
for : 7
for : 8
for : 9
Swift #2
func initUI()
{
//返り値
println( getMessage() )
//引数のデフォルト値
println( getMessageOfJeff() )
//Tuples(タプル)
let message = (2014,"what are you talking about ?")
let (year,question) = message
println( message )
println( "西暦\(year)" )
println( "question:\(question)" )
}
func getMessage()->String{
return "I am a pen."
}
func getMessageOfJeff(message:String="Is this a pen ?")->String{
return message;
}
override func viewDidLoad() {
super.viewDidLoad()
initUI()
}
出力結果
I am a pen. Is this a pen ? (2014, what are you talking about ?) 西暦2014 question:what are you talking about ?
参考
The Swift Programming Language: The Basics
Swift #1
func initUI()
{
//行の終わりに;(セミコロン)はいらない
//定数
let message = "Hello,world!"
println(message)
//変数
var n = 34
println("わたしは\(n*2)歳です")
}
override func viewDidLoad() {
super.viewDidLoad()
initUI()
}
出力結果
Hello,world! わたしは68歳です
UILabelを複製する
-(UILabel*)getCloneUILabelByUILabel:(UILabel*)label
{
NSData *archivedData = [NSKeyedArchiver archivedDataWithRootObject:label];
return [NSKeyedUnarchiver unarchiveObjectWithData:archivedData];
}
UILabel*cloneLabel = [self getCloneUILabelByUILabel:modelLabel];
ステータスバーのサイズを取得
-(CGSize)getStatusBarSize
{
CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
return statusBarFrame.size;
}
プロパティ名を指定してソート
function g_sortOn(_propertyName){
return function(a,b){
if( a[_propertyName] > b[_propertyName] )return 1;
if( a[_propertyName] < b[_propertyName] )return -1;
return 0;
}
}
var tmp = targetArray.sort( g_sortOn('name') );
